It would have to be.
I used it daily. It's fine, more or less, but still really stupid in that stupid windows way.
"Can't modify the name because that item is in use" alone is enough to prove windows is crap. 30 years of that same nonsense, can't even tell when an application is running or not.
Eh.. correct me if I am wrong, but I can't modify a file name on a Mac either when it is in use... That has nothing to do with a crappy OS but with file integrity. It would be a crappy OS if it allowed you to mess up the file system.